Electrical circuit for protecting photovoltaic systems
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United States of America Patent
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Jun 28, 2011
Grant Date -
Nov 12, 2009
app pub date -
May 12, 2009
filing date -
May 12, 2008
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The object of the present invention is to provide a structure for the electrical protection of photovoltaic facilities in the event a photovoltaic generator (G.sub.1-G.sub.p) is connected with its polarity reversed, for what it includes a protection cell that comprises two connection points (1, 2) at which the photovoltaic generator is connected (G.sub.1-G.sub.p), at least one device (D) in charge of reducing the voltage of the photovoltaic generator (G.sub.1-G.sub.p) in the event of polarity reversion, which is connected in parallel between the aforementioned two connection points, at least one element (M) of breakage and/or protection of the photovoltaic generator (G.sub.1-G.sub.p) serially connected to the preceding elements, minimizing the loading on the aforementioned break and/or protection elements.
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